Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

LOS ALTOS (LOAC1)

Lat: 37.35472°NLon: 122.14167°WElev: 539.0ft.

NA

52°F

11°C

Humidity 74%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 22 Mar 12:10 AM PDT
Extended Forecast for

2 Miles SSW Cupertino CA

  • Overnight

    Overnight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 49. Calm wind.
Sunday
Sunny, with a high near 80. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 50. North northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 52. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 79.
Friday Night
Mostly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Cupertino CA
 37.28°N 122.06°W (Elev. 666 ft)
12:32 am PDT Mar 22, 2026
12am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database